Fastening-inserting machine



3, w. T. B. ROBERTS FASTENING INSERTING MACHINE Filed Sept. 11, 1928 2Shaehrs-5116GT l M w. 7 R M m WwM U L Dec. 23, 1930.

w. T. B. ROBERTS 1,785,844

FASTENING INSERTING MACHINE 2 Sheets-Sheet 2 IDRWER.

SEPARATQR.

Patented Dec. 23, 1930 j li mraio v STATES PATENT v 1 WILLIAMTI-IOMASBUGKINGI-IAM ROBERTS, 0E LEICESTER, ENGLAND, ASSIGNOR TO UNITEDSHOE IaA-cHINERY cORroRArIoN, or PATERSON, NEW JERSEY, A coRPo- ATION onNEW JERSEY FASTENING-INSEETING MACHINE Application filed Septemberll,1928, Serial No. 305,239, and in Great Britain October s, 1927. I

This invention relates to fastening insert- .ingmachines, and moreparticularly to ma- "chines for inserting previously formed metallicfastenings, such as loose nails, in parts I of boots and shoes.

a In 1 one aspect, the invention consists in improvements in thlS typeof machine de si ned to improve its sim Jlicit 1 of construction, speedof operation and accuracy in handling and driving the fastenings. Inanother aspect, it consists in novel mechanism for handlingjnails ofthetype known as'Gutlan bills and particularly Cutlan bills of a smallsizewhich have never been-handled previously in automatic fasteninginserting machines.

An important feature of the invention con- SlStS. 1n a novel arrangement"of driver and raceway in accordance with which the driver is utilizedtoclose the raceway in the stopped positionv of the machine and also incertain other positions in its path of movement-so that "the driveritself holds back, during a part of the cycle,the row of fasteningsarranged in the raceway'forinsertion. As herein shown,

7 the driver'is given a preliminary movement arator to advance directlyinto engagement with the side of the driver under impulse of V V the jarof thedriving stroke.

In transferring a fastenlnglnto the driver passage preparatory-toinserting it in the work, it-fsoinetimes happens thatthefastening-becomesimisplaced so that it has a tend- 'ency to jamin thepassage. This is particu- I larly thecase in'handling short Cutlan'billsasa driverpassage of'sufiicient size to admit the head does notpositively control the positionfof'thepointof the bill. With theseconbeingimproperly ditionsin view, another feature of the inventionconsists in a driver passage having one: side closed by ;ahingedlsection which is adapted to yield in the event of a fasteningplaced'for driving and also affords a convenient-means of access to thedriver passage in" case :of stoppage.

7 .Still anotherfeature ofthe inventionv con.-

sists 1 in closing the bottom of the space through which the fasteningis moved by the separator in its delivery to position beneath the driverby a surface which tends to direct :the fastening points to line withthe driver.

The separator itself is also of novel design, comprising two branches,one beveled away from the raceway to separate the fastenings therein andthe other comprising an elongated extension having an upwardly slopingface for. directingthe shanks into line with the driver in the manneralready explained.

These and other features of the invention will be best understood andappreciated from the following description of a preferred embodimentthereof, selected for purposes of illustration and shown in theaccompanying drawings, in which Fig. 1 is a view in elevation of themachine head; V

2 is a View in front elevation, on an enlarged scale, of the driver andseparator operating cam;

Fig. 3 is a plan View of the separator and associated parts;

Fig. 4. is a view in elevation of the separator and associated partswith the cover plate removed;

Fig. 5 is a similar view showing in addition the raceway and driver;

' Fig. 6 is a fragmentary view of portions of, the separator operatingmechanism;

Fig. 7 is a front view of the parts shown in Fig.3; and

Fig. 8 is a diagram showing the driver and separator movements.

The machine is herein shown as adapted tohandle the particular nailsknown as Cutlan-bills, of which the chief characteristics are that thehead and shank are rectangular andthe head merges directly into theshank at an angle on. all four sides of 23 or thereabouts. Cutlan billsare commonly used in a series of sizes in which the larger dimension ofthe head varies between 0.150 and 0.185, each size being made in lengthsas required, varying between A and +7 The particular Cutlanbill whichfor the first time is handled by the mechanism of my invention issmaller its head dimensions being 0.111 by 0.080; its

shank dimensions being 0.082 by 0.0l3; the height of the slopingsides'of the head 0.040 and the overall length of the bill As iscustomary in inserting all forms of rectangular cross section nails, itis desired to insure that each nail of a row is driven in a definiteangular position. In the case of Cutlan bills, this positionis one inwhich the larger dimension of the head lies perpendicular or normal tothe line of the bills. For this reason, the raceway for supplying thebills is of sufiicient width only to admit the smaller dimensionof therectangular shank and the direction of the work feed is at right anglesto themovement ofthebills inleaving the race- The invention is shown asembodied in a Lmachine of the general typefof that disclosed in U. S.Patent N 4190,624 granted January 24,1893, on an application of"LQGoddu, to which reference may be had for details .of construction notdirectly concerned with the present invention. I

r is arranged to be 'swungin one dire 7 face isflush with the end oftheraceway.

The movement of the separator, therefore, is in a path at rightangles tothat of the usual separator. The outer face of the guideway 4 is closedby a cover plate 7 andextending through the inner wall of the f guideway4 is a slot opening into a parallel guideway' in the rear' surface ofthe raceway end 6. An actuating slide 10 is mounted in this second*g'uideway and connected by screws Sand Slto the separator 3. The slide10 is operated by a bell'crank lever '11 pivotallymounted uponastud 12set in the swinging head of the machine; One arm 13 of the lever 11 isengaged between lugs Hand :15 which project fromthe slide '10'and theother arm 16 18 received in a slotcut in the lower end of a swivel'studl7fcarried in the lower end of lever 18; The lever 18 is mounted inthe machine head upon a transverse spindle and v ction by a coilspring5and-in the other-'b'yfa cam 29,

which will be presentlydescribed.

The main portion of the raceway is covered by anadjustable cover20adapted to; slide and swing clear of-the raceway when required in"thenianner described in U. s Patent No.

grantedfNoyember'20, 1923 on application of A. Jerram. Between the coverand the'blockjforming the gateway of the nail pot is mounted a coveringfinger 21".

The driver22 is carried by a driver bar 27 arranged to be actuated byatorsion spring 44 in the nianiierusual in this type of machine.

It is, however, so located with respect to the discharge end of theraceway 2 that in'certain positions in its cycle of movement it closesthe raceway and prevents the line of bills from" advancingby engagingthe endmost bill. The

"driver, accordingly, cooperateswith the separatorincontrolling themovement of the lOlllS presented successively for insert on.

its upper end'a roller 28 which isheld by the action of the spring 5against an annular cam flange on, the cam disk 29. "The timing of thecam will be apparent froman'i-nspe'ction of the. diagram shown in Fig.8, which repre= sents one cycle. of movement, comprising 360. It will beapparent that the machine stops with the separator-slightly advanced butinthe actof being retracted, that is to say,

The separator-actuatinglever 18 carries at:

with thec'am in substantially the position shown in Fig. 2 and the'camroller 28-lifted slightly by the cam surface 42. At the same 0 time, thedriver-occupies its lowermostposr tion and 18 effective to close theraceway, as already explained, and the awl 57 is lifted.

When the machineis started,the separator first completes itsreturnmovement and then, after about 180?, the driver is elevated. As itsupward movementcontinues the separator is advancedby' the actionofthecam surface 23 sothat Q itfmoves' forward and enters between-theshanks of the two endmostbills in the raceway; This-partial forward-movementof the separator, whichtakes placeiwhen the portion 23 of: the oam29reaches't'he roll 28, occurs when the driver has risen sufficient-v lyto clear the bills in the raceway which,-up

to that moment, the'driver' has been the, sole means of restraining. 1The separator dwells in its partially forward positionifor about 10while the flat portion 24t0fthe cam-passes beneath the roller 28:Duringqthisdwell, the driver. is being lifted to clear 'the bills'and asit reaches the limit of'itsi stroke the separator movement is continued:by 1 the :'action *of the cam surface 2 5 and the endniost bill is 'posrtively advanced by. theja'dvancing. wedgei V shaped end of the separatorinto thedriver passage 33 in alignment with'and belowthe driver..Theseparator remains in positionfat the limit of its forward movementfor: about 1 35 while thexflatiportion'4t0 -passes beneath the camroller 28 and is then retracted to a position in; which the raceway isuncovered as the slopingiportion 42"of the -camp'asses' beneath the"roller.

The lowerfork "of the separator: oomprises an extension 26* which is*longfenough to pass'across the raceway in all'positi'onsr of theseparator in 5 its reciprocation; 1 The: ex tension 26 is locatedb'elowthe" points Tof "the billsv in the raceway and has a bevele'dfuppersurface which acts-asa;clo'sureiforathe'tbotf I 40 the driver in risingtends by friction against tom of the space across which each bill ismoved by the action of the. separator. This distance from its uppermostposition before actually being released for its driving stroke. Theactual distance through whichthe driver is lifted is also reduced fromthat which is usual in this type of machine by employing a driverlifting block 32 which is reduced in. heightat one side, as shown :inFig. 2. The

1 driver 22 is arranged so thatwhen it is lifted to its highest pointits lower end will just clear the bills in the racewayand the shortpreliminary descending movement permitted by the cam 30 in its actiononthe beveled surface 41 of the lifting block permits the driver tooverlap and hold back the row of billszin" the raceway as the separatoris retracted.

'Thi scondition of affairs is shown in Fig. 5

and also in Fig.2'where the parts occupy the I position in which thedriver is just about to drop, the cam 30 being shown at the'moment ofmoving clear fromunder the lifting block 32. Y I 1 During its drivingstroke and until the separator 3 again traverses the raceway outlet, thedriver itself forms by its rear side the closure of the discharge end ofthe raceway. The jar of'the driver in falling acts tomove the row ofbills downward in the raceway and brings the endmost bill forwardagainst the side of the driver. The action of the head of the endmostbill to tilt its shank well forward and across the path of theseparator.

The driver throat 33: opposite to the delivery end of the raceway isclosed by a hinged'door 34, held normally shut by a spring. plungermounted in the separator cover 7 and having a pin 46 projectingoutwardly through the cover by which the plunger may be retracted whenit is desired to expose the driver throat. The contacting surfaces ofthe spring plunger'35 and the door 34 are beveled so that in the eventof a bill spring section 37 of the construction shown in U. S. PatentNo. 999,203, granted August 1,1911, on an application of Bryant andUnderwood. Each bill delivered from the raceway by theseparatoris-retained in the l as throat by the friction of the spring sectionuntil actually inserted.

" i In order the better to arrange the bills in the raceway for theaction of the separator 3 upon them, a presser member is arranged to actupon the heads of the two endmost bills in the raceway. This membercomprises a finger 50 which is pivoted atits rear end upon a transversestud 51 projecting from the rear side of the raceway end 6. The otherend 52 islocated above the heads of the bills and is normally urged intoengagement with them by a compression spring 53. Mounted upon the finger50 is a roller 54: arranged over the separator actuating slide 10. Theupper sur: face of the slidelO is formed with a cam proj ection 55, asshown in Fig. 4, which, when the slide and separator are moved back sothat the latter clears the raceway, contacts with the roller 54: andlifts the end 52 of the finger, thus allowing the advancing bills topass freely alongto the driver. The under side of the bill-engaging end52 of the finger is formed, as shown in Fig. 7, with two angular facesdivided by a ridge56. The ridge 56 is thus presseddown between the headsof the two endmost bills in-the raceway and acts to tilt the shanks ofboth of them away from each other, providing a space between them forthe entrance of the separator wedge.

It will be understood that the machine includes in its organizationanawl57 operated, as set forth in said Patent No. 490,624, to perforate thework at one side of the fastening inserting position and then to feedthe work to bring the holeinto alignment with the driver. Theseoperations occur in the 180 of machine cycle which elapses before thedriver begins to move as indicated in Fig. 8.

- That feature of the invention in accordance with which the driver islocated close to the raceway and utilized to retainthe series ofbillstherein is of advantage both from thestandpoint of simplicity in theconstruction of the machine and in reducing the distance throughwhichthe bill must be moved in passing from the raceway to its insertingposition, and also in that itaffords a positive and direct control ofthe bill. All of these factors contribute to the production of a highspeed machine which may be relied upon to-handle bills or similarfastenings with. uniformity and accuracy.

Having thus describedmy invention, what I claim as new and desire tosecure by Letters Patentis: I v

1. A fasteninginserting machine having, in combination, a raceway forloosefastenings, a driver, means for reciprocating the driver inapathadjacent to theend of the raceway to insert fastenings in aworkpiece presented to the machine constructed andarrangedto cause thedriver to move from a stroke, a separator movable in a path extende ingtransversely of the direction of movement v of the fasteningsras theyemerge" from the raceway, and means for moving the separator in its.path'constructed and arranged to withdraw the separator from theraceway while the dr ver is maintained opposite the end of the racewaywhereby a fastening is freed'to pass-the separator and to move intoengagement with the driver by which it is retained in the racewaytemporarily. I

'2. A fastening lnsertmg machine having a raceway for headed fastenings,-a recipro-f catory driver so disposed in lowermost position as to closesaid raceway, and a separator operating to move the fastenings one byone from the raceway into the path of thedriver when the latter islifted, said separator being'movable before the machine reaches itsstoppingposit'ionto clear the way fora fastemng'to pass along the'raceway 7 until stopped by'contact withthe driver.

3. A fastening-inserting machinehaving a raceway for loose fastenings, adriver normally closing said raceway,- spring-actuated means forimparting adriving stroke to the driver, and a cam for moving-saiddriver in opposition to said spring-actuated means designed to permitthedriver "to reassume a raceway-closing position 'priorto its driving*stroke, the driver acting in thelast-named positionas the sole meansfor retaining the fastenings in the raceway. 1

i. 'A fastening inserting machine having a raceway forheaded'fa'stenings, a driver movable adjacent to thedelivery end of theraceway and closing the same in certain positions, a separator arrangedto close the raceway when the driver is at theflimit of g its upwardmovement, and means for moving'the driver during each cycle in thedirect on of its driving stroke to overlap and hold back oncomingfastenings in the race way, the driver acting in the last named positionas the sole means for retainingthe fastenings in-theraceway.

5. A fastening inserting'machine having a raceway for loosefastenings,.a separator movable in a path" at right anglesto thedirection of movement: of the fastenings as they'emerge from theraceway, and means for moving the separator automatically first across.the'end of said" raceway toplace a I fastenlngin driving position andthen back 1 position of the machine.

again to clear the raceway in .the stopped I 6. A fasteninginserting"machine having a raceway, adri'ver passage ad 'acent thereto,

and afseparator for movin'g fastenings from, the raceway to thedriverpassage having a fporti'on permanently closing? the s ace, he}; a

neath the fasteninglin its y'mov'ement tdj the a driver passage.

ing an extended portion disposed at all times beneath the racewayfordirecting the T fastening point toward the driver passage;

8. A fastening inserting machine having a raceway for loose fastenings,a driver, and

a separator cooperating therewith in controlling the movement of theendniost fastening into driving position, said separator being movableto engage the shank of said fastening while the driver moves upwardly,being thereafter arrested while the driver completes its upwardstroke,'and completingits fastening-delivering movement after the driverreaches its uppermost position. i

9. A'fastenin'g inserting In-achi'ne having rator having upper andlower, branches, the upperv branch being beveled away from the racewayand the lower branch. extending bee yondlthe upper branch and having anupwardly beveled portion for deflectin the fastening point away from theraceway.

. '80 a raceway forloose 'ftSllBIllllgS, and a sepa- 1O. A'machine forinserting Cutlan bills havinga raceway, a recipro'catory driver arrangedto close the raceway. in certain posithe side of the driver under the;impulse of the jar of the drivingst-rOkL In testimony whereofl have s gy V name'to, this specification,

WlLLIAM THOMAS BUCKlNGHAM ROBERTS. V

7 A fastening insertingmachine I a raceway for loose fasteningaa driverpas- Sage ad aQent thereto, and a sep'arator-hav-

